Top Qld bureaucrat cleared of corruption

Queensland's top bureaucrat has been cleared by the state's corruption watchdog after he referred himself for investigation when questions were raised about government contracts awarded to his wife's business.

The Crime and Corruption Commission announced on Wednesday no further action would be taken against Department of Premier and Cabinet director-general Dave Stewart.

The director-general referred himself to the corruption watchdog earlier this week after a blog post revealed his wife's public relations company had received almost $700,000 in government contracts.

Mr Stewart had been tasked, alongside the state archivist, with reviewing more than 30,000 emails retrieved from minister Mark Bailey's private email account.

However the CCC said on Wednesday a senior departmental officer would take over the investigation, because of a perception of a conflict of interest.

Mr Bailey was referred to the corruption watchdog after he reportedly received emails from Electrical Trades Union secretary Peter Simpson over his concerns about a now-abandoned superannuation merger.